Unzip file into your /AXtime directory. You should see RM_2.3.0 folder. If the unzip created a folder with RM_2.3.0 inside of it, open that and you should see the RM_2.3.0 folder. Copy or move RM_2.3.0 directory to /AXtime

Copy and replace... copy the "settings.js" file out of the /website directory and paste it into the RM_2.3.0 directory